/***********************************************************************************************
 * File Info: $Id: AxisChartDataProcessor.java,v 1.12 2003/03/09 22:42:11 nathaniel_auvil Exp $
 * Copyright (C) 2000
 * Author: Nathaniel G. Auvil
 * Contributor(s):
 *
 * Copyright 2002 (C) Nathaniel G. Auvil. All Rights Reserved.
 *
 * Redistribution and use of this software and associated documentation
 * ("Software"), with or without modification, are permitted provided
 * that the following conditions are met:
 *
 * 1. Redistributions of source code must retain copyright
 *    statements and notices.  Redistributions must also contain a
 *    copy of this document.
 *
 * 2. Redistributions in binary form must reproduce the
 *    above copyright notice, this list of conditions and the
 *    following disclaimer in the documentation and/or other
 *    materials provided with the distribution.
 *
 * 3. The name "jCharts" or "Nathaniel G. Auvil" must not be used to
 * 	  endorse or promote products derived from this Software without
 * 	  prior written permission of Nathaniel G. Auvil.  For written
 *    permission, please contact nathaniel_auvil@users.sourceforge.net
 *
 * 4. Products derived from this Software may not be called "jCharts"
 *    nor may "jCharts" appear in their names without prior written
 *    permission of Nathaniel G. Auvil. jCharts is a registered
 *    trademark of Nathaniel G. Auvil.
 *
 * 5. Due credit should be given to the jCharts Project (http://jcharts.sourceforge.net/).
 *
 * THIS SOFTWARE IS PROVIDED BY Nathaniel G. Auvil AND CONTRIBUTORS
 * ``AS IS'' AND ANY EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT
 * NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
 * FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL
 * jCharts OR ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
 * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
 * OF THE POSSIBILITY OF SUCH DAMAGE.
 ************************************************************************************************/
package org.jCharts.chartData.processors;

import org.jCharts.chartData.IAxisChartDataSet;
import org.jCharts.chartData.IAxisPlotDataSet;
import org.jCharts.chartData.IDataSeries;
import org.jCharts.AxisChart;
import org.jCharts.properties.DataAxisProperties;

import java.awt.font.FontRenderContext;
import java.util.Iterator;

/*******************************************************************************************
 *
 ********************************************************************************************/
public class AxisChartDataProcessor {

    private double max;
    private double min;
    //private TextLayout titleTextLayout;
    //---need this so know how many items are on the 'label' axis.
    private int numberOfElementsInADataSet;

    /******************************************************************************************
     * Constructor
     *
     *******************************************************************************************/
    public AxisChartDataProcessor() {
    }

    /******************************************************************************************
     * Method to perform all chart data processing.
     *
     * @param axisChart
     ******************************************************************************************/
    public void processData(AxisChart axisChart, FontRenderContext fontRenderContext) {
//todo would it make sense to do this and do the axis titles?
		/*
        if( axisChart.getIDataSeries().getChartTitle() != null )
        {
        this.titleTextLayout= new TextLayout(  axisChart.getIDataSeries().getChartTitle(),
        axisChart.getChartProperties().getTitleFont(),
        fontRenderContext );
        }
         */

        DataAxisProperties dataAxisProperties;
        if (axisChart.getAxisProperties().isPlotHorizontal()) {
            dataAxisProperties = (DataAxisProperties) axisChart.getAxisProperties().getXAxisProperties();
        } else {
            dataAxisProperties = (DataAxisProperties) axisChart.getAxisProperties().getYAxisProperties();
        }


        //---if there is a user defined scale, there is no reason to process the data.
        if (!dataAxisProperties.hasUserDefinedScale()) {
            this.processDataSet((IDataSeries) axisChart.getIAxisDataSeries());
        }


        //---need to set the number of items on the scale in case there are no labels displayed
        Iterator iterator = axisChart.getIAxisDataSeries().getIAxisPlotDataSetIterator();
        IAxisPlotDataSet iAxisPlotDataSet = (IAxisPlotDataSet) iterator.next();
        this.numberOfElementsInADataSet = iAxisPlotDataSet.getNumberOfDataItems();


//todo does it make sense to do the legend label processing here?
		/*
        if( axisChart.hasLegend() )
        {
        //this.lengendLabelProcessor= new TextProcessor();
        // this.lengendLabelProcessor
        }
         */
    }

    /******************************************************************************************
     * Processes the numeric values in the chart data. If there is a user defined scale
     *  there is no need to call this.
     *
     * @param iDataSeries
     ******************************************************************************************/
    private void processDataSet(IDataSeries iDataSeries) {
        IAxisPlotDataSet iAxisPlotDataSet;
        Iterator iterator = iDataSeries.getIAxisPlotDataSetIterator();

        //LOOP
        while (iterator.hasNext()) {
            iAxisPlotDataSet = (IAxisPlotDataSet) iterator.next();

            if (iAxisPlotDataSet.getChartType().isStacked()) {
                //---StockChartDataSet is NEVER stacked!!!!
                StackedDataProcessor.processData((IAxisChartDataSet) iAxisPlotDataSet, this);
            } else {
                NonStackedDataProcessor.processData((IAxisChartDataSet) iAxisPlotDataSet, this);
            }
        }
    }

    /******************************************************************************************
     *
     *
     ******************************************************************************************/
    void setMaxValue(double max) {
        this.max = max;
    }

    /******************************************************************************************
     *
     *
     *
     ******************************************************************************************/
    public double getMaxValue() {
        return this.max;
    }

    /******************************************************************************************
     *
     *
     ******************************************************************************************/
    void setMinValue(double min) {
        this.min = min;
    }

    /******************************************************************************************
     *
     *
     *
     ******************************************************************************************/
    public double getMinValue() {
        return this.min;
    }

    public int getNumberOfElementsInADataSet() {
        return numberOfElementsInADataSet;
    }
    /*********************************************************************************************
     * Enables the testing routines to display the contents of this Object.
     *
     * @param htmlGenerator
     **********************************************************************************************
    public void toHTML( HTMLGenerator htmlGenerator )
    {
    super.toHTML( htmlGenerator );

    String name= this.getClass().getSuperclass().getName() + "->";

    //---calling on instance of YAxis or XAxis
    Field[] fields= this.getClass().getSuperclass().getDeclaredFields();
    for( int i=0; i< fields.length; i++ )
    {
    htmlGenerator.addField( name + fields[ i ].getName(), fields[ i ].get( this ) );
    }
    }
     */
}
